[sibi@sibi fisheye]$ /usr/local/bin/ffmpeg -i input.avi -vf frei0r=defish0r:0.75:n:0.666:0:0.0:0.0:0.25:0.0 -acodec copy -b 500k -an output.avi
ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
  built on Aug  1 2012 15:14:07 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5)
  configuration: --enable-frei0r
  libavutil      51. 54.100 / 51. 54.100
  libavcodec     54. 23.100 / 54. 23.100
  libavformat    54.  6.100 / 54.  6.100
  libavdevice    54.  0.100 / 54.  0.100
  libavfilter     2. 77.100 /  2. 77.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 15.100 /  0. 15.100
Input #0, avi, from 'input.avi':
  Metadata:
    title           : suzanne awards
  Duration: 00:01:57.04, start: 0.000000, bitrate: 930 kb/s
    Stream #0:0: Video: mpeg4 (XVID / 0x44495658), yuv420p, 512x384 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
    Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 44100 Hz, stereo, s16, 256 kb/s
Please use -b:a or -b:v, -b is ambiguous
File 'output.avi' already exists. Overwrite ? [y/N] y
w:512 h:384 pixfmt:yuv420p tb:1/25 sar:1/1 sws_param:flags=2
[buffersink @ 0x2238300] No opaque field provided
[frei0r @ 0x2200140] name:Defish0r author:'Marko Cebokli' explanation:'Non rectilinear lens mappings' color_model:rgba8888 frei0r_version:1 version:0.2 num_params:8
[format @ 0x22386a0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed_frei0r_0' and the filter 'format'
[frei0r @ 0x2200140] auto-inserting filter 'auto-inserted scaler 1' between the filter 'src' and the filter 'Parsed_frei0r_0'
[scale @ 0x2232280] w:512 h:384 fmt:yuv420p sar:1/1 -> w:512 h:384 fmt:rgba sar:1/1 flags:0x4
[frei0r @ 0x2200140] idx:0 name:'Amount' type:double explanation:'Focal Ratio'
[frei0r @ 0x2200140] idx:1 name:'DeFish' type:bool explanation:'Fish or Defish'
[frei0r @ 0x2200140] idx:2 name:'Type' type:double explanation:'Mapping function'
[frei0r @ 0x2200140] idx:3 name:'Scaling' type:double explanation:'Scaling method'
[frei0r @ 0x2200140] idx:4 name:'Manual Scale' type:double explanation:'Manual Scale'
[frei0r @ 0x2200140] idx:5 name:'Interpolator' type:double explanation:'Quality of interpolation'
[frei0r @ 0x2200140] idx:6 name:'Aspect type' type:double explanation:'Pixel aspect ratio presets'
[frei0r @ 0x2200140] idx:7 name:'Manual Aspect' type:double explanation:'Manual Pixel Aspect ratio'
[scale @ 0x21fffc0] w:512 h:384 fmt:rgba sar:1/1 -> w:512 h:384 fmt:yuv420p sar:1/1 flags:0x4
Output #0, avi, to 'output.avi':
  Metadata:
    INAM            : suzanne awards
    ISFT            : Lavf54.6.100
    Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 512x384 [SAR 1:1 DAR 4:3], q=2-31, 500 kb/s, 25 tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (mpeg4 -> mpeg4)
Press [q] to stop, [?] for help
frame= 2926 fps=165 q=2.0 Lsize=    7286kB time=00:01:57.04 bitrate= 510.0kbits/s
video:7210kB audio:0kB global headers:0kB muxing overhead 1.049909%